Schizonyxhelea zoologica, Huerta & Grogan, 2017

Huerta, Herón & Grogan, William L., 2017, New species and new records of predaceous midges in the genera, Schizonyxhelea Clastrier and Stilobezzia Kieffer from Mexico (Diptera: Ceratopogonidae), Zootaxa 4294 (4), pp. 401-418 : 403

publication ID

https://doi.org/ 10.11646/zootaxa.4294.4.1

publication LSID

lsid:zoobank.org:pub:AEE0A680-3206-4AFA-968D-5EC5313738D6

DOI

https://doi.org/10.5281/zenodo.5189428

persistent identifier

https://treatment.plazi.org/id/03E0878E-FF90-F46A-FF39-FF5501E1C73A

treatment provided by

Plazi

scientific name

Schizonyxhelea zoologica
status

 

Key to adult Schizonyxhelea View in CoL of Mexico

(Males of S. guyana Clastrier and females of S. zoologica n. sp. are unknown)

1 Males ...............................................................................................2

- Females.............................................................................................5

2 Gonostylus with several crenulations on mesal surface.......................................... S. zoologica View in CoL n. sp.

- Gonostylus simple, without crenulations on mesal surface.....................................................3

3 Gonostylus with basal thumb-like appendage; wing membrane without macrotrichia beyond costa to wing tip................................................................................................. S. thomsenae (Wirth)

- Gonostylus without basal thumb-like appendage; wing membrane with macrotrichia beyond costa to wing tip............ 4

4 Aedeagus with distal heavily sclerotized horn-shaped sclerite.................................... S. bulla (Thomsen)

- Aedeagus without distal heavily sclerotized horn-shaped sclerite.......................... S. forattinii Wirth & Grogan View in CoL

5 Wing membrane without narrow fringe of macrotrichia beyond the costa to wing tip................ S. thomsenae (Wirth)

- Wing membrane with narrow fringe of macrotrichia beyond the costa to wing tip.................................. 6

6 Wing with 2 radial cells; costa long, costal ratio 0.65; two small ovoid spermathecae................. S. bulla (Thomsen)

- Wing with 1 narrow radial cell; costa short, costal ratio 0.45–0.50; one large retort-shaped spermatheca.................7

7 Claws straight without bifid tips or hair-like basal tooth; 3rd palpal segment with only 1 capitate sensillum; costa very short, costal ratio 0.45................................................................. S. forattinii Wirth & Grogan View in CoL

- Claws with bent bifid tips and hair-like basal tooth; 3rd palpal segment with 3 captitate sensilla; costa short, costal ratio 0.50....................................................................................... S. guyana Clastrier View in CoL

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